Machine for grinding corks



(No Model.)

n P. LATTA. Machine fo'r- Grinding Gorks.

No. 231,591. Parenteel Aug. 24,1880.

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FINLEY LATTA, OF GINGINNATI,.OHIO.

IVIACHINEI FCOR GRIND'ING' CORKS.

SPECIFICATION forming part of Letters Patent N o. 231,591, dated August 24, 1880. Application lecl June 14, 1880. (Model.)

To all 'whom t may concern Be it known that I, FINLEY LATTA, of Gincinnati, in the county of Hamilton, and in the State of Ohio, have invented certain new and useful Improvements in Machines for Grinding Corks; and I do hereby declare that the fol-- description lowing is a full, clear, and exact thereof, reference being had to the accompanying drawing, and to the letters ot' reference marked thereon, making a part of this speciication.

This invention relates to certain improvements in apparatus for shaping and hnish ing corks for bottle-Stoppers and other purposes, and it has for its object to provide a means by which a number ot' corks may be subjected to the shaping and finishing operation at the saine time while fresh corks are being fitted to the apparatusfor subsequent shaping and nishing, and to enable two attendants to operate the apparatus together, when desired, and thereby double the Work accomplished, as more fully hereinafter set forth. These objects I accomplish by the apparatus illustrated in the accompanying drawing, which represents a side elevation of my improved apparatus.4 i

The letter A indicates a metallic support, provided with a series ot two or more radial arms, B, and a central shaft, C, extending downwardly from its under side. To each oi' said arms, near `the extremity, is pivoted a curved lever, D, having bearings E, in which are journaled the spindles F and G, the Lipper spindle being capable of a longitudinal movement in its bearing and provided at its Lipper end with an annular groove, H, into which it thc bifurcated ends of a lever, I, fulcrumed at K to the lever D, and provided with a handle, L, against which bears a spiral spring, M, which holds the leverand spindle in a normal position, so as to press the chuck-head of the spindle against the cork, and returns them to the same after being shifted.

The lower spindle is provided with a friction-pulley, N, by which it receives rota-tion through the medium of suitable mechanism, as more fully hereinafter explained.

The lower spindle is provided with a chuckhead, P, provided with a series of projections, R, which take into the cork in order to rotate it, and the upper spindle is provided with a concave chuck-head for bearing against the upper end of the cork and holding it to the face of the lower chuck-head.

The lever D is provided with a curved slot, S, through which passes a clamping-screw, T, secured 'in the supporting-arm, by mea-ns of which the position of said lever may be adj usted.

The letterUindicates a loose pulley mounted on the shaft C and bearing against the friction-pulleys V, which are constructed of rubber, and are mounted upon spindlesWon the arms Y, which are secured to the tool-holder Z. which is mounted on the slide-rest of an ordinary lathe. The said pulleys V also bear against the pulleys N of the spindles of the respective cork-carriers.

The shaft C iits in the socket in the toolholder Z, and is recessed at its periphery, as indicated by the letter A', the tool-holder being provided with a spring-detent, a', adapted to set into said recesses and hold the device in proper position, as more fully hereinafter set f'orth.

The operation of my improved apparatus is as follows: The loose pulley is connected by means of a belt, B, with any suitable drivingpulley. The said pulley is rotated by this means, imparting motion, through the intermediate pulleys, to the pulleys N and their respective spindles, carrying the corks, which are held between the two chuck-heads ofthe respective cork carriers or levers D. To the lathe-centers are secured the emery-w'heels G C2, one of which rotates, and the other of which remains stationary, the wheels being so located as to bear close up against the peripheries of the corks. The proper' bevel .is given the corks by inclinin g the levers D and clamping them in position by the clamping-screws.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In combination with the support having a series of radial arms, the bent levers provided with spindles and chucks for holding the corks, and mechanism for rotating the corks against the face of an emery-whccl, sub-` stantially as speciiied.

2. In combination with the arms of the sup- IOO port, the levers and mechanism for adjusting and their pulleys, the loose pulley mounted on the same so as to present the eorks confined the shaft of the support, and the intermediate b etween the chucks at any desired angle to pulleys arranged to operate substantially as the face of the grinding-wheels, substantially specified. 5 as speoied. In testimony that I claim the foregoing I 3. In combination with the upper spindle, have hereunto set my hand this 28th day of the lever and spring` for elevating and depress- May, 1880.

in g said spindle and throwing the upper eh uok- FIN LEY LATTA. head into or out of Contact with the cork, sub- Witnesses: 1o stantially as specified. ALBERT PADDACK,

4. In combination with the lower spindles L. H. PUMMILL. 

